JSON Formatter & Validator
Format, validate, and beautify JSON data with syntax highlighting. Perfect for debugging APIs, configuration files, and data exchange.
JSON Statistics
-
-
-
-
-
What is JSON?
JSON (JavaScript Object Notation) is a lightweight data interchange format that's easy for humans to read and write, and easy for machines to parse and generate. It's the most popular format for APIs, configuration files, and data storage.
Our JSON formatter helps you validate, format, and beautify JSON data, making it easier to debug API responses, edit configuration files, and work with structured data.
Why Format JSON?
Easier Debugging
Spot errors and understand structure quickly
Better Readability
Proper indentation makes data easy to understand
Share & Collaborate
Well-formatted JSON is easier to share with teams
JSON Syntax Rules
- Data is in key/value pairs: "key": "value"
- Data is separated by commas: {"key1":"value1","key2":"value2"}
- Curly braces hold objects: {}
- Square brackets hold arrays: []
- Keys must be strings in double quotes: "key"
Frequently Asked Questions
What's the difference between JSON and XML?
JSON is lighter, faster, and easier to parse than XML. It's the preferred format for modern APIs and web services.
Can JSON handle comments?
No, JSON doesn't support comments by design. Use a separate documentation file or custom "_comment" fields.
Is my JSON data stored?
No! Your JSON is processed locally in your browser and never stored on our servers.
Work With JSON Like a Pro
Format, validate, and beautify your JSON data instantly
Explore All Developer Tools